It sounds like you do know what to do. That you value your job is all the more reason to keep your distance from her. As said above, just be respectful as you would to any co-worker, but minimize contact, in her case. Human Resources are there, if you need them, but they will expect that you do your absolute utmost to avoid any entanglement with her. Resist any overtures she may make to you about wanting to get together to "talk things out." I wouldn't trust her. She seems to see getting your attention as a challenge she likes. Don't try to "hold her accountable" for anything in the past. She will never admit to misleading you. Just accept that she is someone you need to steer clear of. Time will take care of the hurt you feel.